System and method to select multi-radio access technology in a user equipment during sim initialization

Abstract

The present disclosure relates to a system and a method for selecting multi-radio access technology (RAT) in a user equipment (UE) during an initialization of subscriber identity module (SIM). The method includes reading capability information associated with the UE from a universal integrated circuit card (UICC) at the time of initializing the SIM, determining whether the UE includes a capability to connect to a first network having a first RAT based on the capability information, and registering the UE with the first network having the first RAT based on the UE capable of being connected to the first network.

We claim: 
     
         1 . A system ( 110 ) for selecting a radio access technology (RAT) during an initialization of a subscriber identity module (SIM) in a user equipment (UE) ( 102 ), said system ( 110 ) comprising:
 one or more processors ( 202 ); and   a memory ( 204 ) operatively coupled to the one or more processors ( 202 ), wherein the memory ( 204 ) comprises processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 read capability information associated with the UE ( 102 ) from a universal integrated circuit card (UICC) during the initialization of the SIM; 
 determine whether the UE ( 102 ) includes a capability to connect to a first network ( 106 ) having a first RAT based on the capability information; and 
 register the UE ( 102 ) with the first network ( 106 ) having the first RAT based on the UE ( 102 ) including the capability to connect to the first network ( 106 ). 
   
     
     
         2 . The system ( 110 ) as claimed in  claim 1 , wherein the memory ( 204 ) comprises processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 register the UE ( 102 ) with a second network ( 108 ) having a second RAT based on the UE ( 102 ) not being capable to connect to the first network ( 106 ).   
     
     
         3 . The system ( 110 ) as claimed in  claim 2 , wherein the memory ( 204 ) comprises processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 deactivate one or more device capabilities associated with the UE ( 102 ) to connect to the first network ( 106 ); and   register the UE ( 102 ) with the second network ( 108 ).   
     
     
         4 . The system ( 110 ) as claimed in  claim 1 , wherein the capability information comprises at least one of: service capability information associated with the UE ( 102 ) or a pre-defined public land mobile network (PLMN) list. 
     
     
         5 . The system ( 110 ) as claimed in  claim 4 , wherein the service capability information comprises one or more service subscriptions associated with the first network ( 106 ). 
     
     
         6 . The system as claimed in  claim 5 , wherein the memory ( 204 ) comprises processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 determine whether a service identifier associated with the one or more service subscriptions in the first network ( 106 ) is present in the service capability information; and   register with the first network ( 106 ) based on the presence of the service identifier in the service capability information.   
     
     
         7 . The system ( 110 ) as claimed in  claim 4 , wherein the pre-defined PLMN list comprises one or more PLMNs, a RAT associated with the one or more PLMNs, a priority associated with the one or more PLMNs, and a subscription information associated with the one or more PLMNs. 
     
     
         8 . The system as claimed in  claim 4 , wherein the memory ( 204 ) comprises processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 determine whether a subscription to the first network ( 106 ) is enabled based on the subscription information in the PLMN list; and   register with the first network ( 106 ) based on the subscription to the first network ( 106 ) being enabled in the subscription information.   
     
     
         9 . A method for selecting a radio access technology (RAT) during an initialization of a subscriber identity module (SIM) in a user equipment (UE) ( 102 ), the method comprising:
 reading, by one or more processors ( 202 ), capability information associated with the UE ( 102 ) from a universal integrated circuit card (UICC) during the initialization of the SIM;   determining, by the one or more processors ( 202 ), whether the UE ( 102 ) includes a capability to connect to a first network ( 106 ) having a first RAT based on the capability information; and   registering, by the one or more processors ( 202 ), the UE ( 102 ) with the first network ( 106 ) having the first RAT based on the UE ( 102 ) including the capability to connect to the first network ( 106 ).   
     
     
         10 . The method as claimed in  claim 9 , comprising:
 registering, by the one or more processors ( 202 ), the UE ( 102 ) with a second network ( 108 ) having a second RAT based on the UE ( 102 ) not being capable to connect to the first network ( 106 ).   
     
     
         11 . The method as claimed in  claim 10 , comprising:
 deactivating, by the one or more processors ( 202 ), one or more device capabilities associated with the UE ( 102 ) to connect to the first network ( 106 ); and   registering, by the one or more processors ( 202 ), the UE ( 102 ) with the second network ( 108 ).   
     
     
         12 . The method as claimed in  claim 9 , wherein the capability information comprises at least one of: service capability information associated with the UE ( 102 ) or a pre-defined public land mobile network (PLMN) list. 
     
     
         13 . The method as claimed in  claim 12 , wherein the service capability information comprises one or more service subscriptions associated with the first network ( 106 ). 
     
     
         14 . The method as claimed in  claim 13 , comprising:
 determining, by the one or more processors ( 202 ), whether a service identifier associated with the one or more service subscriptions in the first network ( 106 ) is present in the service capability information; and   registering, by the one or more processors ( 202 ), with the first network ( 106 ) based on the presence of the service identifier in the service capability information.   
     
     
         15 . The method as claimed in  claim 12 , wherein the pre-defined PLMN list comprises one or PLMNs, a RAT associated with the one or more PLMNs, and a priority order associated with the one or more PLMNs, and a subscription information associated with the one or more PLMNs. 
     
     
         16 . The method as claimed in  claim 15 , comprising:
 determining, by the one or more processors ( 202 ), whether a subscription to the first network ( 106 ) is enabled based on the subscription information in the PLMN list; and   registering, by the one or more processors ( 202 ), with the first network ( 106 ) based on the subscription to the first network ( 106 ) being enabled in the subscription information.   
     
     
         17 . A user equipment (UE) ( 102 ), comprising:
 a subscriber identity module (SIM) card; and   one or more processors ( 202 ) communicatively coupled to a system ( 110 ) and operatively coupled to a memory ( 204 ) comprising processor-executable instructions, which on execution, cause the one or more processors ( 202 ) to:
 read capability information associated with the UE ( 102 ) from a universal integrated circuit card (UICC) during the initialization of the SIM card; 
 determine whether the UE ( 102 ) includes a capability to connect to a first network ( 106 ) having a first radio access technology (RAT) based on the capability information; and 
 register the UE ( 102 ) with the first network ( 106 ) having the first RAT based on the UE ( 102 ) including the capability to connect to the first network ( 106 ). 
   
     
     
         18 . A non-transitory computer readable medium that comprises one or more instructions stored thereupon that when executed by a processor causes the processor to:
 read capability information associated with a user equipment (UE) ( 102 ) from a universal integrated circuit card (UICC) during an initialization of a subscriber identity module (SIM) card;   determine whether the UE ( 102 ) includes a capability to connect to a first network ( 106 ) having a first radio access technology (RAT) based on the capability information; and   register the UE ( 102 ) with the first network ( 106 ) having the first RAT based on the UE ( 102 ) including the capability to connect to the first network ( 106 ).